Seat structure



Jan. 3, 1939. E. T. TODD I 2,142,662

SEAT STRUCTURE4 l Filed July 28, 1957 IN V EN TOR.

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Patented Jan. 3, 1939 UNITED STATES PATENT oFFicE SEAT STRUCTUREApplication July 28, 1937, Serial No. 156,123

2 Claims.

The present invention relates to seat structures and more particularlyto seats which are especially well adapted for installation in buses,airplanes, motor cars and railway coaches.

The primary objects of the instant invention are to provide a structureof the character above indicated which is light in weight, sturdy inconstruction and yet economical in manufacture and attractive inappearance; to provide such a seat structure which is comfortable inuse; to provide such a structure which is free of projections to catchor tear the clothing of persons occupying or moving to or from theseats; and further, to provide such a seat which may be readily andconveniently constructed and assembled.

An illustrative embodiment of the invention is shown in the accompanyingdrawing, wherein:

Figure 1 is a side elevational view of a seat structure of the characterhereinbefore set forth;

Figure 2 is a rear elevational View thereof;

Figure 3 is an enlarged fragmentary perspective view of the back,bottom, and a side of the structure; and

Figure 4 is an enlarged sectional View thereof on line 4-4 of Figure 1.

Referring then to this drawing in which like parts of the seat structureshown are designated by the same numerals in the several views, thestructure comprises front legs I and rear legs I I, preferably formed oftubular metal stock. Each front leg and each rear leg is securedtogether by a brace I3 likewise preferably formed of tubular metalstock.

Each rear leg of the structure has a flattened upper portion I4 to whichis secured as by bolts or rivets I5 a back plate I6 of sheet metalstock. The back plate is provided along its bottom edge with a forwardlyextending flange I1 which is preferably strengthened by inwardlyextending brackets I8 having forwardly extending top flanges 34 securedas by spot welding to the flange Il, and forwardly extending si-deflanges 35 secured as by spot welding to the rear legs of the seatstructure.

A supporting frame is here shown as formed of a continuous tube of metalstock having a front portion I9 secured to the upper flattened ends 2l]of the front legs as by bolts or rivets 2|, side portions 22 disposedoutwardly from the front legs an-d which extend rearwardly-upwardly, anda top rail 23 between the rounded corners 24 of the frame.

The upwardly extending segments 25 of the side portions 22 of thesupporting frame are provided with flanges 26, 2'I struck out of thetubular metal stock and the back plate I6 is secured thereto in anyconvenient manner as by bolts or rivets 28.

A seat plate 29 is supported at its front edge by the front portion I9of the supporting frame to which it is secured and the rear edge of theseat plate is secured to the upper surface of the forwardly extendingflange I'I of the back plate I6 as by spot welding.

Suitably upholstered spring cushions 30 may be secured to the seat plate29 in any convenient manner and a similar cushion 3| secured to the backplate I6. The seat plate may further be provided with a reinforcingangle iron 32 and with vents 33 for the escape and admission of air tothe compressible spring chamber of the seat cushion.

It will thus be seen that the angular segments 22 of the side portionsof the supporting frame are so associated with the seat plate 29, theback plate I6 and 'their connecting flange I1, that a rugged and sturdyconstruction is provided at the angle where seat and back meet. Aneconomical and attractive seat is thus provided by the use of acontinuous metal tubing extending around the seat and the back whichserves as a supporting frame for the structure.

While but one specific embodiment of the invention has been herein shownand described, it will be understood that certain details of theconstruction shown may be altered or omitted without departing from thespirit of the invention as the same is defined by the following claims.

I claim:

l. In a seat structure of the class described, front and rear pairs oflegs, an upstanding back plate secured to said rear legs and having aforwardly extending bottom flange, a supporting frame having a frontportion secured to said front legs, side portions extendingsubstantially horizontally rearwardly from said front portion and thenangularly rearwardly-upwardly and finally upwardly adjacent the sides ofsaid back plate and secured thereto, and a top portion adjacent the topof said back plate, and a seat plate supported by the front portion ofsaid supporting frame and supported bythe bottom flange of said backplate.

2. In a seat structure of the class described, front and rear pairs oflegs, an upstanding back plate secured to said rear legs and having aforwardly extending bottom flange, a supporting frame comprising acontinuous tube secured to 'said front legs and extending across thefront of the structure and rearwardly at opposite sides thereof andthence angularly rearwardlyupwardly then upwardly adjacent the sides ofsaid back plate; and finally across the top of said back plate, meansfor securing said frame tosaid back plate, and a seat plate supported bythe front portion of said supporting frame and supported by the bottomflange of said back plate.

EDWIN T. TODD.

